Decided, determined (8)
I believe the answer is:
resolved
I believe this is a double definition.
'decided' is the first definition.
(resolving is a kind of deciding)
'determined' is the second definition.
(resolving is a kind of determining)
(Other definitions for resolved that I've seen before include "Decided firmly on a course of action" , "Determind - mind made up" , "very firm" , "Not put off" , "Determined - found the answer again" .)